SLIME FLUX AND WETWOOD - Caused by a Bacteria called Enterobacter cloacae this disease is common in elm, oak, mulberry.  It is infrequent, but slime flux has been seen on maple, paper birch, butternut, redbud, sycamore, and walnut.The most common symptom is oozing sap, which is called "slime flux."  Sap flows from bark cracks or other wounds in the trunk or limbs.  The sap can run down the trunk, causing dark streaks that become gray or white when dry.  Slime flux can develop rotten smelling odors as secondary microorganisms grow and feed on the oozing liquid.  These wet regions are not decayed because decay fungi do not grow well on water-soaked wood.  Wetwood can contribute to dieback in affected branches and dripping slime flux can slow wound closure. Nothing will cure trees of slime flux.  Proper pruning techniques reduce the incidence of wetwood by promoting closure of pruning wounds.  Fertilizing can help to invigorate affected trees; however, if the tree is in severe decline, removal of the specimen is suggested.